body{font-family:sans-serif;background:#f8fafc;margin:0}
.app{max-width:600px;margin:auto;padding:20px}
.logo{font-size:24px;font-weight:bold;color:#2563eb;margin-bottom:20px}
.card{background:#fff;padding:24px;border-radius:18px;box-shadow:0 4px 15px rgba(0,0,0,.08);margin-bottom:20px}
button{width:100%;padding:14px;border:0;border-radius:12px;background:#2563eb;color:#fff;font-weight:bold}
.hidden{display:none}
.progress{height:10px;background:#ddd;border-radius:10px;margin-bottom:20px}
#bar{height:10px;background:#2563eb;width:33%;border-radius:10px}
.menu{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.menu div{background:#fff;padding:16px;border-radius:12px;text-align:center}